Mobility Device

3. The system as in claim 2 wherein the at least one user input device comprises a thumbwheel, the thumbwheel being configured for providing movement data throughout a full rotation of the thumbwheel and thumbwheel position, the user interface subsystem being configured for retaining the thumbwheel position across a power cycle, the thumbwheel position being associated with at least one user interface subsystem characteristic.

15. The system as in claim 13 wherein the cane comprises at least one cane channel surrounding the plurality of set cavities, and wherein the armrest bracket comprises a cane geometry complementing the at least one cane channel, the cane geometry enabling alignment between at least one of the plurality of set cavities and the at least one fastener cavity.